If you saw a tour bus ambling through Hollin Hills yesterday you might have wondered what on earth was going on. In that bus were 24 members of the Chicago-based Mies van der Rohe Society in town for the weekend to visit the modern show at the Corcoran and see other modern sites in the D.C. area. Their guide was the architect Howard Decker, the former chief curator of the National Building Museum. My neighbor Ken Wilson put Howard in touch with me, and then Howard and I made plans for the Mies Society to visit the neighborhood starting with a visit to our house. It was still a bit of a shock when a tour bus pulled up in front and all these people poured out and walked up to the door. They were wonderful guests, asked lots of great questions, and seemed truly enamored. After a short visit at my house, I gave them a Hollin Hills map and some pointers, and off they went.